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K. Schrijver:

Deformed Root of a Composite Diapir in Granulite Facies

1975. II, 118 pages, 38 figures, 24 tables, 16x24cm, 500 g
Language: English

(Geotectonic Research, Volume 49)

ISBN 978-3-510-50015-4, paperback, price: 38.00 €

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Contents

Contents top ↑


Introduction 4
General statement 4
History of research 6
Physiography 8
Field work 8
Geological setting and Ethology 9
Lac-Croche Complex 10
Structural geology 12
Fabric 12
Structure 13
Shape 19
Subarea 17 20
Major shapes 22
Summary and discussion I 24
Petrography 26
General statement 26
Mineral assemblages 27
Leuconorites 29
Leuconorite I 33
Leuconorite II 34
Jotunites 35
Jotunite I 36
Jotunite II 38
Quartz-mangeritic augen gneiss 39
Plutonic enclaves or dikes 44
Garnetiferous quartz-mangeritic augen gneiss 45
Granitic augen gneiss 49
Monzonite 51
Plutonic enclaves or dikes 58
Contact relations monzonite and quartz-mangerite 58
Granite 60
Granitic gneiss and granulites 64
Summary and discussion II 65
Dikes and relict dikes 69
Dark dikes and relict dikes 69
Monzonitic dikes 80
Diahase dike and lamprophyre 82
Summary and discussion III 82
Envelope and enclaves 87
Envelope 87
Enclaves 90
Summary and discussion IV 92
Geochronology 94
Relative time-scale 94
Absolute time-scale 94
Correlation 95
Conclusions, questions and speculations 100
Conclusions 100
Questions and speculations 100
Epilogue 101
Acknowledgments 103
References 108
Appendix 112
Modal analysis 112
Sampling and sample preparation 115
Chemical analysis 115
Normative calculations 118